Converters & Calculators
Flow Rate Conversion Table
Description of the Flow Rate
The flow rate is a measure of the liquid volume passing through a point per unit time. It is significant in various industrial sectors to ensure that systems function correctly. This article provides an overview of converting flow quantities between GPM and CFM, detailing calculation methods and including a lookup table.
GPM and CFM
GPM (Gallons per Minute)
Gallons per Minute (GPM) is a unit used for liquids. It quantifies the number of gallons passing per minute, which is vital for applications such as water supply systems and irrigation.
CFM (Cubic Feet per Minute)
Cubic Feet per Minute (CFM) measures the flow rate of gases, particularly air. It indicates the volume of air passing per minute, which is important for HVAC systems and industrial ventilation.
Conversion Table for Flow Rate
The calculation of flow rate determines the volume that passes through a system over time. Knowledge of GPM and CFM is essential for precise measurements and the design of systems. Accurate calculations ensure that systems are neither overburdened nor undersized, thereby supporting performance and energy efficiency. The conversion factor is: 1 GPM ≈ 0.127 CFM.
|
GPM (Gallons per Minute) |
CFM (Cubic Feet per Minute) |
|
1 GPM |
0.127 CFM |
|
5 GPM |
0.635 CFM |
|
10 GPM |
1.27 CFM |
|
20 GPM |
2.54 CFM |
|
50 GPM |
6.35 CFM |
|
100 GPM |
12.7 CFM |
Below is a conversion table for other common flow rate units:
|
Unit |
In Litres per Minute (L/min) |
In Gallons per Minute (GPM) |
In Cubic Metres per Hour (m³/h) |
In Cubic Feet per Minute (CFM) |
|
Litres per Minute (L/min) |
1 |
0.2642 |
0.06 |
0.0353 |
|
Gallons per Minute (GPM) |
3.7854 |
1 |
0.2271 |
0.1337 |
|
Cubic Metres per Hour (m³/h) |
16.667 |
4.4031 |
1 |
0.5886 |
|
Cubic Feet per Minute (CFM) |
28.317 |
7.4805 |
1.6998 |
1 |
Note: The conversion values are approximate. Further details can be found at Stanford Advanced Materials (SAM).
Frequently Asked Questions
What is the difference between GPM and CFM?
GPM measures the flow rate of liquids, while CFM measures the flow rate of gases such as air.
How can I convert GPM to CFM?
Use the conversion factor: 1 GPM ≈ 0.127 CFM.
Why is the flow rate important for system design?
Accurate flow rate measurement ensures efficient operation and proper system functionality.
Can I use the table for all types of liquids?
The table applies primarily to water-based liquids; different liquids may require adjusted calculations.
Which instruments can measure flow rate?
Flow meters and anemometers are typically employed to measure the flow rate in liquids and gases.
Chin Trento
